Iowa Code § 637.604
If there is no trustee of the trust other than an interested trustee, the interested trustee or, where two or more persons are acting as trustee and are interested trustees, a majority of such interested trustees may, in the trustee’s sole discretion and without the approval of the court, do any of the following subject to the requirements of section 637.605:
2002 Acts, ch 1086, §8, 21
Referred to in §637.605, 637.606, 637.613